Equipped with an internal, rechargeable battery. One full charge of 24 hours gives 5 to 7 hours of battery operation. Has built-in charger that plugs into power for intermittent or continuous recharging. Longwave only.
N.B.: The lamp cannot be used while it is charging.
Caution
Be careful to limit exposure of your eyes to shortwave ultraviolet rays. These rays can "sunburn" the eyes and cause uncomfortable irritation. You should not look into a shortwave lamp when it is turned on. When working near a shortwave lamp we recommend the wearing of protective glasses. Longwave ultraviolet normally does not irritate the eyes but we would not recommend staring into an ultraviolet lamp anymore than we would recommend staring into any other light.